<%--
  Created by IntelliJ IDEA.
  User: maTengLong
  Date: 2019/12/18
  Time: 23:36
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java"  %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<%
    request.setCharacterEncoding("utf-8");
%>
show..
<br>
<%--<%
    Integer.parseInt("abc");
%>--%>
<%
Object tmess = request.getAttribute("mess");
if(tmess!=null){
out.println(tmess);
}
%>
<br>
你输入的用户名是：<%=request.getParameter("userName")%>
</body>
</html>
